using System;

​

public class Program

{

    public static void Main()

    {

        int x;

        int cnt = 0;

        x = int.Parse(Console.ReadLine()); 

​

        while (x != 0) 

        {

            if (x == 9)

                 cnt++;

            else

                cnt = 0;  

​

            if (cnt == 3) 

            {

                Console.WriteLine("yes");

                return;

            }

​

            x = int.Parse(Console.ReadLine());    

        }

​

        Console.WriteLine("no");  

    }

}